Update bitstream-ordering.js

There is a bad JQuery selector in the following code. This causes a submit to take place each time an up or down arrow is clicked. It is difficult to see the error in the javascript console because the submit takes place immediately. 

Due to the page refresh delay, this is confusing to users when a large number of bitstreams are present. 

Note that "$^=" is not a valid selector. 

http://api.jquery.com/category/selectors/
Update bitstream-ordering.js

Found an additional scenario in which a javascript error occurs while re-ordering bitstreams.

Create an item with 3 original bitstreams.

Go to the edit bitstream screen and hit the down arrow on the second item.  An error will be thrown revealing a row without an id attribute.
DS-2134 missing configuration properties for mirage2
Update item-view.xsl

skip zero-length titles and labels
Update dspace.cfg

prefer the label of a bitstream and then its title for the link on the item page
Drop DSpace-Manual.pdf which is unmaintained
Adjust README to point to online documentation instead of removed PDF
[DS-2196] License files do not support UTF-8 characters
Fix fall-through switch in OAIHarvester which would have stopped it if pause was issued.
DS-2231 Use console.readPassword to not echo create-administrator password
Merge pull request #549 from terrywbrady/DS-2027

DS-2027 Update bitstream-ordering.js
Configure DSpace DatabaseManager to use Flyway DB to auto-migrate DB schemas
Create a new "migrations" directory for flyway. Remove all manual
migration scripts.
Reworking XMLWorkflow migration into a Flyway Java migration (which only changes DB when enabled). DB script cleanup.
Improved initialization logic so that it also handles "fresh_install" scenario
Fixes so that Unit Tests just use Flyway DB as well
Updates to fix Unit Testing in H2. Unfortunately requires H2 having its own custom migration scripts, and some rework of how DatabaseManager initializes
Add missing license headers
README and NOTICE updates/enhancements. Changing them all to be markdown format for easier viewing on GitHub
Remove old database_schema.sql from Unit testing